89 lines
2.7 KiB
C
89 lines
2.7 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef VPX_SCALE_YV12CONFIG_H_
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#define VPX_SCALE_YV12CONFIG_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "vpx/vpx_external_frame_buffer.h"
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#include "vpx/vpx_integer.h"
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#define VP8BORDERINPIXELS 32
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#define VP9INNERBORDERINPIXELS 96
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#define VP9BORDERINPIXELS 160
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#define VP9_INTERP_EXTEND 4
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typedef struct yv12_buffer_config {
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int y_width;
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int y_height;
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int y_crop_width;
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int y_crop_height;
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int y_stride;
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/* int yinternal_width; */
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int uv_width;
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int uv_height;
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int uv_crop_width;
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int uv_crop_height;
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int uv_stride;
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/* int uvinternal_width; */
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int alpha_width;
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int alpha_height;
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int alpha_stride;
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uint8_t *y_buffer;
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uint8_t *u_buffer;
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uint8_t *v_buffer;
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uint8_t *alpha_buffer;
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uint8_t *buffer_alloc;
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int buffer_alloc_sz;
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int border;
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int frame_size;
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int corrupted;
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int flags;
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} YV12_BUFFER_CONFIG;
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int vp8_yv12_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
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int width, int height, int border);
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int vp8_yv12_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
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int width, int height, int border);
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int vp8_yv12_de_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf);
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int vp9_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
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int width, int height, int ss_x, int ss_y,
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int border);
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// Updates the yv12 buffer config with the frame buffer. If ext_fb is not
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// NULL then libvpx is using external frame buffers. The function will
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// check if the frame buffer is big enough to fit the decoded frame and
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// try to reallocate the frame buffer. If ext_fb is not NULL and the frame
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// buffer is not big enough libvpx will call cb with minimum size in bytes.
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//
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// Returns 0 on success. Returns < 0 on failure.
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int vp9_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf,
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int width, int height, int ss_x, int ss_y,
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int border,
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vpx_codec_frame_buffer_t *ext_fb,
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vpx_realloc_frame_buffer_cb_fn_t cb,
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void *user_priv);
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int vp9_free_frame_buffer(YV12_BUFFER_CONFIG *ybf);
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#ifdef __cplusplus
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}
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#endif
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#endif // VPX_SCALE_YV12CONFIG_H_
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